Electrically-controlled engine



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(No Model.) I

J. E. BYRNE. ELEGTRICALLY CONTROLLED ENGINE.

Patented June 11, 1889.

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I 'JfaBYRm. ELEGTRIGALLY CONTROLLED ENGINE.

No. 405,010. PatentedJune 11, 1889.v

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(No Model.) 4 sheets-sheet 3. J. E. BYRNE. ELEGTRIGALLY GONTROLLEDENGINE. No. 405,010. Patented June 11, 1889.,

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(No Model.) 4 Sheets-Sheet 4. J. E. BYRNE. ELEGTRIGALLY UONTROLLEDENGINE.

PatentedJune 1 1889- r I INVENTOR:

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N PETERS, Pvwufuuw m her, Washington, m0.

UNITED STATES PATENT OFFICE.

JAMES E. BYRNE, OF BROOKLYN, NEW YORK.

ELECTRiCALLY-CONTROLLED ENGIN E.

SPECIFICATION forming part of Letters Patent No. 405,010, dated June 11,1889.

Application filed April 19, 1888. $erial1lo. 271,183. (No model.)

To all whom it may concern:

Be it known that I, JAMEs E. BYRNE, of Brooklyn, in the county of Kingsand State of New York, have invented a new and Improved Electrically-Controlled Engine, of which the following is a full, clear, and exactdescription.

This invention relates to an apparatus by means of which the startingand stopping of an engine may be controlled by electricity; and itconsists in a mechanism for this purpose and in details thereofconstructed and arranged as hereinafter described and claimed.

Figure 1 is a perspective view showing the application of myimprovement. Fig. 1 is a diagram of the circuits. Fig. 2 is a sidesectional elevation. of a portion of the valve-operating cylinder,showing a side elevation of the auxiliary valve-operating cylinder withits valve-chests in section. Fig. 3 is a plan view of the auxiliaryvalve-operating cylinder, showing one of its valves in section. Fig. 4:is a transverse section of the auxiliary valve-operating cylinder andits valves, taken on line :1; cc in Fig. 3. Fig. 5 is an enlargedsectional elevation of one of the dischargevalves, showing a portion ofthe auxiliary valve-operating cylinder in section. Fig. 0 is asideelevation of a modification, and Fig. 7 is a plan view of the same.

Similar figures and letters of reference indicate corresponding partsinall the views.

The object of my invention is to provide means for electricallyoperating the valves of hydraulic elevators both manually andautomatically.

My invention consists in the combination, with the controlling-valve ofan ordinary hydraulic elevator, of anauxiliary cylinder pro vided withelectrically-operated valves, an electric generator, a switch arrangedin the elevator-car for directing a current through the magnets of thevalve, and automatic circuit-controllers attached to the hoistingmechanism of the elevator for shifting the circuits.

and operating the valves when the elevatorcar reaches the upper or lowerend of its excursion.

I have shown my improvement in connection with hydraulic-elevatormechanism of well-known construction, and will first briefly describethe elevator mechanism to facilitate the understanding of myimprovement.

The hydraulic cylinder A and the ways B B are mounted upon suitablesupports, and to the cylinder A is fitted a piston whose piston-rod O isconnected with a frame D, sliding in the ways B B. In the frame D isjournaled a series of sheaves E upon a transverse rod carried by theframe D, the sheaves being arranged to turn freely and independently ofeach other. At the opposite end of the cylinder A is journaled a seriesof sheaves F upon the fixed shaft G, the said sheaves F being free torotate independently of each other upon the shaft G.

The wire cable 11 is attached by one of its ends to an car a, projectingfrom the cylinderA, and extends around the first sheave F. of the seriescarried by the frame D, thence backward around the first sheave F of thestationary series, thence around the second of the movable sheaves E,and so on until it reaches the last sheave F of the stationary series,from which it extends up the elevatorshaft to the sheaves at the top,and thence downward to the car 0 in the well-known manner.

In the side of the cylinder A, near the closed end and between the endand the piston, is inserted the water-supply and discharge pipe I, whichis provided with. the stop-valve J, of ordinary construction, andcommunicates with the controlling- 'alve K, which is a simple valveconstructed to admit water from the supply-pipe L to the cylinder A, andto permit it to escape from the cylinder through the dischargepipe M.This valve has heretofore been operated by a rack N, worked by a pinionb on a shaft 0, which extends through the valve-casing, and is providedwith a sheave cl, aroundwhich extendst-heendlesscablee,which passesupward through the elevatorshaft and over asheave at the top of theshaft, one branch of the endless rope passing through the elevator-carO, to be operated by the conductor, who starts and stops the car byslidin g the controlling-valve through the medium of the said cable 6,the sheave cl, the pinion b, and the rack N. The mechanism thusdescribed is that of one of the ordinary wellknown elevators, and formsno part of my invention, except in so far as it enters into combinationwith the parts of my improved starting and stopping mechanism.

The auxiliary valve-operating cylinder 10 is supported axially in linewith the controlling-valve K, and contains a piston 17, which carries apiston-rod 18, extending through a stuifing-box f upon the end of thecylinder 16, also through a stuffing-box 9 upon the end of the casing ofthe valve K, and is permanently connected with the rack N, which movesthe said valve K. the cylinder 16, at opposite ends thereof, arearranged the supply-valve 19 and dischargevalve 19, and upon theopposite side are ar ranged the discharge-valve 19 and supplyvalve 19.The supply-valves at opposite ends of the cylinder 16 are arrangeddiagonally opposite each other, and the dischargevalves are arranged inthe same way. The supply-valves 19 and 19 being of precisely the sameconstruction, a description of one will be sulticient.

The valve-casing is provided with an outer chamberj and an inner chamber20, the upper and lower walls of the said inner chamber being aperturedand provided with bushings 2% of non-corrosive materialsueh as steammetal or bronzethe bushings being bored cylindrically, and tothebushings is fitted the double valve 22. The balanced double valve 22 isformed of two recessed disks 23, mounted upon the spindle 25 and fittingaccurately the bushings 24. In the ease of the discharge-valve therecess of each disk is in the upper surface, and in the edge of thevalve are formed ports 28, communicating with the recess and inclineddownwardly, so that when the valve is in its normal position, as shownin Figs. 4 and 5, there will be communicationbetween the chambers j and20 through the said ports. The downward movement of the valve 22 islimited by the screw 27, which passes through the bottom of thevalve-casing. The valve-spindle 25 is prolonged above the upper disk 23and carries an armature 20. i

In the top of the casing of the valve 19 is inserted a disk 7;, ofnon-magnetic material, into which are screwed the polar extremities 31of the cores of the electro-magnet 30, the said cores being inelosed bybobbins 29 in the usual way. By this construction I am e11- abled tocause the magnet to act upon the armature 26 without its being in anyway atiected by the material of the valve-casing,so that when a currentis sent through the magnet-coil 2!) by means of a conductor 11, Fig. 1,connected, in practice, with a battery and switch-board, (not hereshown,) the valve 22 will be moved upward by the attraction of thearmature 26 by the magnet.

The supplyvalves 19 1.) are arranged with the recessed sides of thedisks 23 downward and the limit-screws 27 are adjusted so that Upon oneside of when no current passes through the magnet the valve-will remainclosed. \Vhen a current is sent through the magnets of the supply anddischarge valves at one end of the cylinder, the supply-valve of thatend of the cylinder will be opened and the discharge valve will beclosed by the action of the magnets, and the water will enter the opensupply-valve and push the piston 17 i'orward, the discharge-valve ofthat end of the cylinder remaining closed, the discharge-valve of theopposite end of the cylinder being open. This operation is precisely thesame for both ends of the cylinder.

Upon the guide 13 of the frame I) are mounted two contact-springs Z t.Opposite and normally in contact with the inner faces of these springsare arranged contact-springs m m. The springs m m are oppositelyarranged with respect to each other. Opposite the outer faces of thesprings Z!" are arranged contact-springs m m, which are in the path ofthe said springs Z Z, and the springsl? are also arranged in the path ofa bar n, of nonconducting material, carried by the frame D, the bar abeing arranged with relation to the elevator mechanism and the springs ZI, so that when the elevator-car reaches one end of its excursion itwill touch one of the contact-springs, and when it reaches the oppositeend of its excursion it will touch. the other contact-spring.

In the elevator-car is placed a twopoint switch 0, provided with aswitch-arm p and contact-points q r. -The pivot of the switcharm 1) isconnected by a wire .9 with one pole of the battery P, the remainingpole being connected by a wire it with the magnets -30 upon one side ofthe cylinder 16, the said magnets 30 being connected in turn with themagnets 30 upon the opposite side of the cyl. inder. The contact-springsm m are connected electrically with the magnet 30 of thedischarge-valve1f)", and the contact-springs m m are connectedelectrically with the supply-valve 19 The coiiitact-spring Z isconnected by the wire '6 with the contactpoint q of the switch 0, andthe contact spring Z is connected electrically with the contactpoint rof the switch 0 by the wire on. lYhen the switch-arm p is placed uponthe contact-point q, the circuit of the battery 1 is closed and thecurrent ilows through the conductor a, switch-arm j), contact-point wireit, spring I, coniactspring we, magnet ill) of the su 'iply-valve 19magnet 30 of the discharge-valve 1.9, thus closing the discharge andopening the supply, admitting water to the back end of the cylinder 1 U,moving the piston 17 forward, the water in front of. the piston beingallowed to escape through the normally-open disehaigc-valve 1!), whenthe piston 17, through the medium of the rod is, will open the valve K,admitting water to the cylinder A, pushing the piston outward, and

moving the frame D so as to increase the distance between the sheaves EF, thus causing the elevator-car to rise in the shaft.

The car may be stopped at any point by reversing the switch 0, placingthe switch-arm Q) upon the point 1", thus causing the current to passfrom the battery P, through the wire .9, switch-arm p, contact-point 7",wire 00, spring Z, contact-spring m, magnets 30 of the supply anddischarge valves 19 19, conductor u, to the battery, thus admittingwater to the forward end of the cylinder 16, causing the piston 17 tomove backward, thus closing the valve K, so that water neither entersthe cylinder A nor escapes therefrom when the switch-arm p is removedfrom contact-point r and the elevator-car remains stationary until it isagain desired to move it, when, if the car is to descend, the switch-armp is replaced upon the point r and the valve 19 is held open, and thevalve l9 is held closed until the piston 17 is carried to the rear endof its stroke, thus opening the valve K, so as to allow the watercontained by the cylinder A to escape through the discharge-pipe M, whenthe car 0, descending by its own gravity, takes up the rope H, drawsthesheaves E F toward each other, and forces the piston of the cylinderA inward.

Should the attendant fail to arrest the motion of the car by themanipulation of the switch-arm p when the frame D nears the end of itsexcursion toward the cylinder A, the bar it will strike the spring Z,causing it to break contact with the spring m, bringing it into contactwith the spring m when the current will flow through the magnets 30 ofthe supply and discharge valves 19 19", admitt-ing water to the oppositeend of the cylinder 16, causing the motion of the piston 17 to bereversed, thus, through the medium of the mechanism already described,reversing the motion of the elevator. The dischargevalves of oppositeends of the cylinder are normally open, so that, if desired, the valve Kmay be operated by the cable 6 in the usual way.

In Figs. 6 and 7 I have illustrated a modification in which the supplyand discharge valves are both connected with the ends of the auxiliarycylinder by means of pipes. In this case the hydraulic-valve mechanismand auxiliary cylinder are omitted. The hydraulicv cylinder 18 isconnected by means of pipes 49 50 with valve-chest 19. Circuit-wires 52connect with magnets 29, secured to said valvechest. 7

In the above description I have shown the invention as applied to anelevator when the hand-rope is retained. \Vhen it is desired to leavethe hand-rope off, the four valves (similar to the presentsupply-valves) are made and placed in their positions, and the wires areled in precisely the same, with the exception that, instead of twoopposite valves at the same end of the auxiliary cylinder, as 19 19flandl9 19 being in the same circuits, the diagonally-opposite valves, as 1919 and 19 19 are arranged in the same circuits, as shown by dotted linesin Fig.1, thus causing, when either circuit is closed, a valve at eachend of the auxiliary cylinder to open and act, one as a supply and theother as a discharge valve.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. The combination, with the valve-oper atingmechanism of a hydraulic elevator, of an auxiliary cylinder providedwith separate supply and discharge valves, electro-magnets arranged tooperate the said valves, and a piston contained by the cylinder andconnected with the valveoperating mechanism of the elevator,substantially as described.

2. The combination, with the valve-operating mechanism of an elevator,of a cylinder provided with a piston connected with the elevator-valve,separate supply and discharge balanced valves connected with thecylinder and provided with armatures, and electro-m agnets arranged tooperate the said valves, the dischargewalves being arranged to remainnormally open and the supply-valves normally closed, substantially asdescribed.

3. In valve-operating mechanism for elevators, the combination, with adouble cylindrically-bored valve-seat, of a valve formed of two recesseddisks, each provided with ports extending from the recess totheperiphery, substantially as described.

4. The combination, with the magnet attached to the valve-chest, havingchambers and valve-seats, as specified, of the balanced valves arrangedin line and having recesses in the upper side, and side ports whichcommunicate with said recesses, and the armatures attached to thevalve-stems, as shown and described.

5. The combination, with the valve-operating mechanism of an elevator,of an auxiliary cylinder provided with a piston connected with thevalveoperating mechanism, separate supply and discharge valves connectedwith the auxiliary cylinder and provided with armatures, controllingelectromagnets arranged in the casing of the said valves, an electricgenerator, (such as a battery,) circuit-wires leading from the generatorto the magnets and elevator-car, and aswitch for shifting the currentfrom one set of electro-magnets to the other, substantially asdescribed.

6. The combination, with the valve-operating mechanism of a hydraulicelevator, of an auxiliary cylinder provided with a piston and furnishedwith supply and discharge valves, armatures attached to the supply anddischarge valves, electro-magnets arranged to control the supply anddischarge valves, an electric generator, a switch attached to theelevator-car, circuit-controlling devices attached to the elevatormechanism and arranged to be operated thereby when the car reaches theupper or lower part of its excursion, and the circuit-Wire,substantially as described.

'7. The coll'lbination,with the cylinder 10, having the piston 17, ofsnpply-vah es 19 19 and discharge-valves 19 19", adj nsting-screws 27,the valves 19" and 19 being constructed to remain normally open,armatmres 26, carried by the Valves, and eleetroqnagnets 30, 10 arrangedadjacent to the armatnres, substam tially as described.

JAMES E. BYRNIJ. Vitnesses:

EDW'ARD W. CADY, EDGAR TATE.

